.road-sign-left {-webkit-animation: roadMoveLeft 2s ease-in infinite; animation: roadMoveLeft 2s ease-in infinite;}
.road-sign-right {-webkit-animation: roadMoveRight 2s ease-in infinite; animation: roadMoveRight 2s ease-in infinite;}

@-webkit-keyframes roadMoveLeft {
    from {
        -webkit-transform:scale(0) translate(0,0) rotate(13deg);
        transform: scale(0) translate(0,0) rotate(13deg);
    }

    to {
        -webkit-transform: scale(1) translate(0,70vh) rotate(13deg);
        transform: scale(1) translate(-15vh,70vh) rotate(13deg);
    }
}

@keyframes roadMoveLeft {
    from {
        -webkit-transform:scale(0) translate(0,0) rotate(13deg);
        transform: scale(0) translate(0,0) rotate(13deg);
    }

    to {
        -webkit-transform: scale(1) translate(0,70vh) rotate(13deg);
        transform: scale(1) translate(-15vh,70vh) rotate(13deg);
    }
}

@-webkit-keyframes roadMoveRight {
    from {
    	-webkit-transform:scale(0) translate(0,0) rotate(-13deg);
        transform: scale(0) translate(0,0) rotate(-13deg);
    }

    to {
    	-webkit-transform: scale(1) translate(0,70vh) rotate(-13deg);
        transform: scale(1) translate(15vh,70vh) rotate(-13deg);
    }
}

@keyframes roadMoveRight {
    from {
        -webkit-transform:scale(0) translate(0,0) rotate(-13deg);
        transform: scale(0) translate(0,0) rotate(-13deg);
    }

    to {
        -webkit-transform: scale(1) translate(0,70vh) rotate(-13deg);
        transform: scale(1) translate(15vh,70vh) rotate(-13deg);
    }
}